CN112127712A

CN112127712A - Intelligent lock based on micro-energy power supply

Info

Publication number: CN112127712A
Application number: CN202010985355.6A
Authority: CN
Inventors: 汪平; 闵雄; 卢良斌
Original assignee: Guangdong Square Technology Co ltd
Current assignee: Guangdong Square Technology Co ltd
Priority date: 2020-09-18
Filing date: 2020-09-18
Publication date: 2020-12-25

Abstract

The invention discloses an intelligent lock based on micro-energy power supply, which comprises a lock body, a lock rod, a multi-stage transmission unlocking component and a passive micro-energy module, wherein the multi-stage transmission unlocking component and the passive micro-energy module are assembled in the lock body; the multi-stage transmission unlocking and locking assembly comprises an electric power source, a cam piece and at least two stages of lever transmission units, wherein each lever transmission unit comprises a functional lever and an energy storage elastic piece; the passive micro-energy module provides a working power supply for the electric power source, and the cam piece rotates under the driving of the electric power source; the at least two-stage lever transmission unit is provided with a triggering end which is driven by the cam piece to trigger the at least two-stage lever transmission unit to swing in a cascading way, and the at least two-stage lever transmission unit is also provided with a buckling mechanism which locks or releases the locking part when the at least two-stage lever transmission unit swings in the cascading way. The invention can use the micro energy temporarily acquired from the outside as a power supply to unlock the lockset.

Description

Intelligent lock based on micro-energy power supply

Technical Field

The invention relates to the technical field of locks, in particular to an intelligent lock based on micro-energy power supply and a domino transmission unlocking mechanism.

Background

The intelligent lock is often used as a lock control for safety and process control, and the application field is very wide, for example, the lock control of a power supply box, a distribution network outdoor power distribution cabinet, a substation mechanism box and a power metering box which face to city key public facilities; and the lock control is used for the package of logistics, the lock control of carriages and containers; and the lock control of oil and gas pipeline valves, commodity coal sample secrecy containers and the like for material management.

The intelligent lockset of the internet of things based on the passive micro-energy power supply technology has obvious advantages and characteristics in the industrial application environment where the power supply cannot be obtained due to the characteristics of the passive technology. Because the micro-energy power supply is low, the provided weak energy exchangeable torque is very limited, and therefore the micro-energy power supply has higher design requirements on the unlocking mechanism of the intelligent lock. The current ordinary intelligent tool to lock reliability structure of low-power consumption all has certain limitation in the design, especially passive thing networking intelligent tool to lock, because of the energy weak, the moment of opening lock undersize leads to the stroke of unblanking short, the strength of unblanking is not enough, can't obtain fine popularization and application, and the intelligence tool to lock of the external or built-in power supply mode that is more common still has fairly big gap on promoting.

Specifically, there are mainly the following problems: 1. traditional machinery or active tool to lock can easily overcome the elasticity + frictional force that the compression spring of lockpin produced and reach the purpose of unblanking, and passive or little energy tool to lock because of the energy supply is not enough, leads to the moment of unblanking not enough according to conventional design easily. 2. When unblanking, passive tool to lock need be followed the environment and got ability, energy storage, and it is relatively poor to unblank for a long time experience, can't reach the experience of unblanking of traditional tool to lock. 3. In order to solve the problem of insufficient energy, a larger lock body space is needed to carry out special structural design.

Disclosure of Invention

The invention aims to provide an intelligent lock which can use micro energy temporarily acquired from the outside as a power supply to unlock the lock.

In order to achieve the purpose, the invention adopts the following technical scheme:

an intelligent lock based on micro-energy power supply comprises a lock body and a lock rod, wherein the lock rod is provided with a locking part which is matched in the lock body and moves between an unlocking position and a locking position; the method is characterized in that: the lock also comprises a multi-stage transmission unlocking component and a passive micro-energy module which are assembled in the lock body; the multi-stage transmission unlocking and locking assembly comprises an electric power source, a cam piece and at least two stages of lever transmission units, wherein each lever transmission unit comprises a functional lever and an energy storage elastic piece; the passive micro-energy module provides a working power supply for the electric power source, and the cam piece rotates under the driving of the electric power source; the at least two-stage lever transmission unit is provided with a triggering end which is driven by the cam piece to trigger the at least two-stage lever transmission unit to swing in a cascading way, and the at least two-stage lever transmission unit is also provided with a buckling mechanism which locks or releases the locking part when the at least two-stage lever transmission unit swings in the cascading way.

As a specific technical scheme, the at least two-stage lever transmission unit comprises a power-assisted lever, a power-assisted lever elastic piece, a lock catch lever and a lock catch lever elastic piece; the power-assisted lever is arranged in the lock body in a swinging mode through a first supporting point, the end part of a force arm on one side of the power-assisted lever serves as the trigger end and is positioned below the cam piece, and the elastic piece of the power-assisted lever applies upward acting force to the force arm on one side of the power-assisted lever; the locking lever is arranged in the lock body in a swinging way through a second fulcrum, the end part of the force arm at one side of the locking lever is pressed against the lower part of the end part of the force arm at the other side of the power-assisted lever, and the end part of the force arm at the other side of the locking lever is provided with the buckle mechanism; the latch lever elastic member applies an upward acting force to the other side of the latch lever.

As a specific technical scheme, a touch block is arranged at the end part of the force arm at one side of the power-assisted lever in an upward protruding mode and is located below the cam piece.

As a specific technical scheme, the electric power source is a motor and is transversely arranged at the middle upper part in the lock body, the cam piece is arranged on a driving shaft of the electric power source, and the cam piece is provided with at least two cam vertexes.

As a specific technical solution, the top point of the cam is designed to be a gentle rising edge and a steep falling edge in the reverse rotation direction.

As a specific technical scheme, the elastic member of the power lever is a power lever torsion spring which is sleeved on the first fulcrum, one end of the elastic member of the power lever is in abutting fit with the lock body, and the other end of the elastic member of the power lever is in fit with a fit hole in the power lever.

As a specific technical scheme, the elastic member of the lock catch lever is a lock catch lever torsion spring which is sleeved on the second pivot, one end of the elastic member is matched with the lock body in an abutting mode, and the other end of the elastic member is matched in a matching hole in the lock catch lever.

As a specific technical scheme, a clamping groove is formed in one side, facing the locking lever, of the locking part, and an annular groove is also formed in the locking part in the circumferential direction below the clamping groove; the clamping mechanism comprises a first clamping block and a second clamping block which are distributed at intervals up and down, and the first clamping block is used for clamping a clamping groove on a locking part of the locking rod downwards; the second clamping block is in a fork shape with two fork arms, and the two fork arms of the second clamping block are clamped into two side groove bodies of the annular groove on the locking part of the locking rod.

As a specific technical scheme, the intelligent lock further comprises a first sensor for detecting the swing position of the power lever, and the intelligent lock further comprises a second sensor for detecting the swing position of the lock catch lever.

As a specific technical scheme, the passive micro energy module is electric energy obtained by induction through an NFC technology; the intelligent lock further comprises an RFID plate and a protection plate, the RFID plate is installed on the outer side of the lock body, the protection plate is covered on the outer side of the RFID plate, and a coil used for inducing and acquiring electric energy is arranged on the RFID plate.

The intelligent lock provided by the invention has the following beneficial effects:

(1) the unlocking and locking assembly comprises more than two levels of lever transmission units, each transmission unit is composed of a functional lever and an energy storage torsion spring, the energy storage torsion springs can be selectively configured according to needs, and the torsion springs can be replaced by elastic pieces in other forms. Each transmission unit has the functions of mechanical energy storage, energy storage release, energy transmission and force amplification, and based on the unlocking and locking assembly with the structure, mechanical unlocking of the large-elasticity lock rod can be realized under the driving of micro-energy, and non-contact electronic authorization unlocking of mobile terminals such as mobile phones, PDAs and iPADs is realized. Because the mobile terminal is used for unlocking in an electronic key mode, the mobile terminal has advanced functions of multi-stage encryption, remote authorization, unlocking process management and the like and has high reliability.

(2) The transmission units of the unlocking and locking assembly do not directly resist the elastic force of the spring, but are converted into contact surface friction force through structural design, so that the requirement of unlocking on the force is reduced, and the requirement of energy reduction is met.

(3) The force of the friction force is further reduced through the multi-stage lever, and the unlocking torque is reduced to the maximum extent, so that the requirement on energy is reduced. And the mechanism increases the required force of the next stage of transmission action by releasing the stored energy of the spring.

(4) The cam summit on the cam piece is more than two, consequently, energy supply at every turn only need drive the cam piece rotate a fraction of a round can, reduce motor idle time when unblanking, increase and unblank and trigger the number of times, avoid idle loss, under the prerequisite of less energy consumption, can accomplish one time unblock operation, promote and unblank response and user experience.

(5) Through rational layout design, optimize the space and use, furthest reduces the tool to lock volume.

Drawings

Fig. 1 is a perspective view of an intelligent lock provided in an embodiment of the present invention;

FIG. 2 is an exploded view of an intelligent lock provided by an embodiment of the present invention;

FIG. 3 is a diagram illustrating an internal structure of the smart lock according to an embodiment of the present invention;

fig. 4 is a view of the electric power source, the cam member, the power lever, and the latch lever of the smart lock according to the embodiment of the present invention when they are engaged with the locked state.

Fig. 5 is a view of the electric power source, the cam member, the power lever, and the latch lever in the intelligent lock according to the embodiment of the present invention when they are engaged in the unlocked state.

Detailed Description

The following description of the embodiments of the present invention will be further described with reference to the accompanying drawings, wherein for the purpose of illustration, the upper, lower, left, right, front, rear, transverse, longitudinal, axial and other orientations may be defined in the application for the purpose of clearly describing the relative positions of the structures, and is not intended to limit the actual orientation of the product during manufacture, use, sale and the like. The following further describes embodiments of the present invention with reference to the accompanying drawings:

as shown in fig. 1 and 2, the intelligent lock provided by the present embodiment includes a lock body 10, a lock rod 20, a multi-stage transmission unlocking assembly, and a passive micro-energy module 40. The multi-stage transmission unlocking and locking assembly comprises an electric power source 31, a cam member 32, a power lever 33, a power lever torsion spring 34, a locking lever 35 and a locking lever torsion spring 36.

It should be noted that the smart lock in this embodiment is a padlock, and therefore the lock rod 20 is a hook-shaped lock rod; it will be appreciated that the locking bar is not excluded from being a straight bar or other form, as required by other applications. In either form, the locking lever 20 has a locking portion 21 that fits within the lock body 10 and is movable between an unlocked position and a locked position. The multi-step driving unlocking assembly is assembled in the lock body 10, and locks or releases the locking bar 20 in the locking position by cooperating with the locking portion 21 of the locking bar 20. The specific configuration of each part is detailed below:

as shown in fig. 2, the lock body 10 includes a main housing 11 and a cover 12, the cover 12 is fixedly mounted on a side of the main housing 11, and an assembly space is provided in the lock body 10. A locking hole 111 is formed in the left portion of the lock body 10, and the locking portion of the lock lever 20 is engaged with the locking hole 111. Referring to fig. 3, the electric power source 31 is a motor and is transversely disposed at the middle upper portion of the lock body 10, the driving shaft of the electric power source 31 is located at the right end, and the cam member 32 is mounted on the driving shaft of the electric power source 31 and is driven by the driving shaft to rotate. The cam member 32 has at least one cam apex 321, in this embodiment three cam apexes 321. The cam apex 321 is designed to counter-rotate first with a more gradual rising edge and then with a steep falling edge.

Referring to fig. 3, the assist lever 33 is swingably disposed in the lock body 10 through a first fulcrum 101, a trigger block 334 is disposed at an end of the right arm 331 of the assist lever 33 and protrudes upward, and the trigger block 334 is located below the cam member 32. The assist lever torsion spring 34 applies an acting force in the counterclockwise rotation direction to the assist lever 33; specifically, the torsion spring 34 is sleeved on the first fulcrum 101, and one end of the torsion spring is in abutting fit with the lock body 10, and the other end of the torsion spring is in fit with the fit hole 335 on the power lever 33. The latch lever 35 is swingably disposed in the lock body 10 through a second fulcrum 102, an end of a right arm 351 of the latch lever 35 abuts against a lower portion of an end of a left arm 332 of the power lever 33, and an end of a left arm 352 of the latch lever 35 is provided with a latch mechanism 353. The latch lever torsion spring 36 applies an acting force in the counterclockwise rotation direction to the latch lever 35; specifically, the latch lever torsion spring 36 is sleeved on the second fulcrum, and one end of the latch lever torsion spring is in abutting fit with the lock body 10, and the other end of the latch lever torsion spring is in fit with the fit hole 355 on the latch lever 35.

A locking groove 211 is formed on one side of the locking part 21 of the locking rod 20 facing the locking lever 35, and an annular groove 212 is formed in the locking part 21 and below the locking groove 211 in the circumferential direction. The fastening mechanism 353 arranged at the end of the left force arm 352 of the locking lever 35 comprises a first fastening block and a second fastening block which are distributed at intervals up and down, and the first fastening block is used for fastening the fastening groove 211 on the locking part 21 of the locking rod 20 downwards; the second latch is fork-shaped with two prongs, and the two prongs of the second latch are clipped into the two side slots of the annular groove 212 on the locking portion 21 of the locking lever 20.

The passive micro-energy module 40 is mounted at the lower portion of the inside of the lock body 10 for managing the passive micro-energy and supplying the electric power to the electromotive power source 31. In this embodiment, the passive micro energy is electric energy obtained by induction through an NFC technology. Referring to fig. 2, the smart lock further includes an RFID board 13 and a protection board 14, the RFID board 13 is installed on the outer side of the cover plate 12, and a coil for inducing and obtaining electric energy is disposed on the RFID board 13.

As shown in fig. 3, 4 and 5, the working principle of the intelligent lock is as follows:

when the unlocking is needed, the passive micro energy module 40 acquires micro energy from a mobile terminal (such as a mobile phone, a PDA, an iPAD and other mobile terminals with NFC modules), and drives the electric power source 31 (i.e. a motor) to work to drive the cam member 32 to rotate, the cam vertex 321 on the cam member 32 downwardly presses the end of the right force arm 331 of the power lever 33, the power lever 33 overcomes the acting force of the torsion spring 34 of the power lever, the right force arm 331 descends, and the left force arm 332 ascends; the torsion force is amplified by the aid of the power-assisted lever 33 to overcome the frictional resistance of the locking lever 35, at the moment, the left arm 332 of the power-assisted lever 33 releases the right arm 351 of the locking lever 35, the locking lever 35 releases the stored energy of the locking lever torsion spring 36, the locking lever torsion spring 36 drives the locking lever 35 to swing, so that the left arm of the locking lever 35 is lifted, meanwhile, the buckle 353 arranged at the end of the left arm 352 of the locking lever 35 releases the locking part 21 of the locking lever 20, and at the moment, the locking lever 20 can move upwards to an unlocking position from a current locking position.

When locking is needed, the locking part 21 of the locking rod 20 is pressed downwards to press against the second clamping block downwards, so that the left force arm 352 of the locking lever 35 is lowered, the right force arm 351 is lifted, and the locking rod 20 is clamped downwards by the buckle 353 arranged at the end part of the left force arm 352 of the locking lever 35; meanwhile, after the cam member 32 further rotates, the cam vertex 321 on the cam member is already staggered with the end of the right arm of the power lever 33, at this time, the power lever torsion spring 34 lifts the right arm 331 of the power lever 33, the left arm 332 descends, the left arm 332 of the power lever 33 again presses the right arm 351 of the latch lever 35 downwards, and the latch lever torsion spring 36 is compressed and stores energy.

In this embodiment, the second latch has a function of pulling the locking rod 20 upward when unlocking, but in order to facilitate the ejection of the locking rod 20 after unlocking, a locking rod spring (not shown) is further installed at the bottom of the locking hole 111 to apply an upward force to the locking rod 20. In addition, referring to fig. 3, the smart lock provided in this embodiment further includes a first sensor 61 and a second sensor 62, the first sensor 61 is used for detecting the swing position of the assist lever 33, and the second sensor 62 is used for detecting the swing position of the latch lever 35, so as to determine the unlocking state of the smart lock. Specifically, the first sensor 61 is used for detecting whether the right arm of the power lever 33 swings downward to a first preset position, and the second sensor 62 is used for detecting whether the right arm of the latch lever 35 swings downward to a second preset position. In this embodiment, when the right force arm of the power lever 33 swings to the first predetermined position and the right force arm of the locking lever 35 swings downward to the second predetermined position, the smart lock is in an open state. The first sensor 61 and the second sensor 62 may be in the form of light sensing, contact sensing or touch sensing.

The above embodiments are merely provided for full disclosure and not for limitation, and any replacement of equivalent technical features based on the gist of the present invention without creative efforts should be considered as the scope of the present disclosure.

Claims

1. An intelligent lock based on micro-energy power supply comprises a lock body and a lock rod, wherein the lock rod is provided with a locking part which is matched in the lock body and moves between an unlocking position and a locking position; the method is characterized in that: the lock also comprises a multi-stage transmission unlocking component and a passive micro-energy module which are assembled in the lock body; the multi-stage transmission unlocking and locking assembly comprises an electric power source, a cam piece and at least two stages of lever transmission units, wherein each lever transmission unit comprises a functional lever and an energy storage elastic piece; the passive micro-energy module provides a working power supply for the electric power source, and the cam piece rotates under the driving of the electric power source; the at least two-stage lever transmission unit is provided with a triggering end which is driven by the cam piece to trigger the at least two-stage lever transmission unit to swing in a cascading way, and the at least two-stage lever transmission unit is also provided with a buckling mechanism which locks or releases the locking part when the at least two-stage lever transmission unit swings in the cascading way.

2. The smart lock of claim 1 wherein the at least two-stage lever actuator unit comprises a booster lever, a booster lever spring, a latch lever, and a latch lever spring; the power-assisted lever is arranged in the lock body in a swinging mode through a first supporting point, the end part of a force arm on one side of the power-assisted lever serves as the trigger end and is positioned below the cam piece, and the elastic piece of the power-assisted lever applies upward acting force to the force arm on one side of the power-assisted lever; the locking lever is arranged in the lock body in a swinging way through a second fulcrum, the end part of the force arm at one side of the locking lever is pressed against the lower part of the end part of the force arm at the other side of the power-assisted lever, and the end part of the force arm at the other side of the locking lever is provided with the buckle mechanism; the latch lever elastic member applies an upward acting force to the other side of the latch lever.

3. The intelligent lock according to claim 2, wherein a trigger block is provided at an end of the one side arm of the power lever in a protruding manner, and the trigger block is located below the cam member.

4. The intelligent lock of claim 3, wherein the electric power source is a motor disposed transversely in the upper-middle portion of the lock body, and the cam member is mounted on the driving shaft of the electric power source, and the cam member has at least two cam apexes.

5. A smart lock as claimed in claim 4, wherein the cam apex is designed to counter-rotate first with a more gradual rising edge and then with a steep falling edge.

6. The intelligent lock of claim 2, wherein the resilient member of the power lever is a power lever torsion spring, and the resilient member of the power lever is sleeved on the first fulcrum, and has one end abutting against and engaging with the lock body and the other end engaging with an engaging hole on the power lever.

7. The intelligent lock of claim 2, wherein the latch lever elastic member is a latch lever torsion spring, and is sleeved on the second fulcrum, and one end of the latch lever elastic member is in abutting fit with the lock body, and the other end of the latch lever elastic member is in fit with the fit hole on the latch lever.

8. The intelligent lock according to any one of claims 2 to 7, wherein a clamping groove is formed in one side, facing the lock catch lever, of the locking part, and an annular groove is further circumferentially formed in the locking part below the clamping groove; the clamping mechanism comprises a first clamping block and a second clamping block which are distributed at intervals up and down, and the first clamping block is used for clamping a clamping groove on a locking part of the locking rod downwards; the second clamping block is in a fork shape with two fork arms, and the two fork arms of the second clamping block are clamped into two side groove bodies of the annular groove on the locking part of the locking rod.

9. The smart lock of any one of claims 2 to 7, further comprising a first sensor for detecting a swing position of the assist lever, and a second sensor for detecting a swing position of the latch lever.

10. The smart lock according to any one of claims 1 to 7, wherein the passive micro energy module is an electric energy obtained by induction through NFC technology; the intelligent lock further comprises an RFID plate and a protection plate, the RFID plate is installed on the outer side of the lock body, the protection plate is covered on the outer side of the RFID plate, and a coil used for inducing and acquiring electric energy is arranged on the RFID plate.